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https://issues.apache.org/jira/browse/YARN-4997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454253#comment-15454253
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Tao Jie commented on YARN-4997:
-------------------------------
I looked more closely at {{synchronized}} in onReload. {{onReload}} here is
under the lock of {{AllocationFileLoaderService}}, but initialization of
authorizer is under the lock of {{FairScheduler}}. As a result, we'd better to
keep all access to authorizer under the same lock of
{{FairScheduler}}(Actually, initScheduler and reload won't happen at the same
time, but they are called in different threads).
> Update fair scheduler to use pluggable auth provider
> ----------------------------------------------------
>
> Key: YARN-4997
> URL: https://issues.apache.org/jira/browse/YARN-4997
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Affects Versions: 2.8.0
> Reporter: Daniel Templeton
> Assignee: Tao Jie
> Attachments: YARN-4997-001.patch, YARN-4997-002.patch,
> YARN-4997-003.patch, YARN-4997-004.patch, YARN-4997-005.patch,
> YARN-4997-006.patch, YARN-4997-007.patch
>
>
> Now that YARN-3100 has made the authorization pluggable, it should be
> supported by the fair scheduler. YARN-3100 only updated the capacity
> scheduler.
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